Screen-door insect brush and destroyer



- F. P. BESSETTE SCREEN DOOR INSECT BRUSH AND DESTROYER Oct. 23, 1923. r1,471,585

Filed April 1. 1921 abbozmmg Patented GctIZS, 1923.

UNHTED stares PATE FRANCIS P.

Nr ors es.

BnssET'rE, or WICHIITA, KANSAS.

SCREEN-DOOR rnsnor BRUSH AND nnsraovnn.

' Application filed April 1, 1921.

, ing of the door to brush the flies from the erably of sheet metal,

I tail of door and thereby prevent their entry into the house. Incidentto the construction of device adopted, many of the flies are actuallydestroyed while others are merely brushed off the door.

Referring to the drawings. forminga part of this specification, andwherein like numerals of reference designate corresponding partsthroughout the several views, V

Fig. 1 is a view infront elevation of a screen door with the inventionapplied thereto,

Fig. 2 is a vertical sectional View taken on the line 22 of Fig. 1, and

Figs.

parts of the invention.

I In the drawing, reference numeral 1 designates the door frame, 2thescreen door of the usual swinging type, and 3 thewire netting ofthedoor. At'a suitable pointon the door is attached a shelf 4, formedprefand to this shelf attached at its lower end the fly brush, the upperend of which brush is attached to a follower 5. The brush is composed ofa plu-- rality of transverse strips 6 formed from wire screening, and atstaggered points adacent strips are connected together by wire clips 7,so that when distended, the brush' assumes a cellular form with diamondshaped cells. Theupper and lower extreme strips 6 are attached to thefollower and shelf respectively by clips 8. To the central portion ofthe follower 5, is attached an op erating cord 9 which extends upwardlyover a pulley 10, thence horizontally through a guide 12on the outer andupper corner of the door, thence through a pulley block 14 hung from thedoor frame at cent the said guide 12, and thence downwardly along theframe of the'doonwhere the fr e end is secured in a manner tobedescribed. The said pulley roller 10 is journaled on a rod or wire 15having its ends ma in the county of Sedgwick and.

new and usebracket 17 has bracket 24, to' the 3 and 4 are perspectiveviews in de a pointadja Serial No. 457,776.

bent at right angles andsecured in turned over ears 16. 'These ears arecut from the terial of the supporting bracket 17 and when bent upproduce the opening in which the pulley 10 operates. The

wardly at substantially right angles and this angular end portion issecured by screws or the like to the upper edge portion of the door,substantially centrally ofthe upper portion thereof. To the outer end ofthe bracket 17 is hinged a downwardly extending member .19, and aportion thereof 20, extends above the bracket 17 for a purpose to -bedescribed. To the lower end of the member 18 is hinged a horizontaltripping element 21, past which thefollower 5 trips when the latterisraised andby which it is suspended after tripping. Themember 21 has aright-angular front end 22 which engages the member 19 to maintainmember 21 in the hori zontal.

To thedoor frame, substantially centrally of the'upper frame member, isattached a outer end of which is hinged amember 25,

said bracketmember 24, all for a purpose to be described; i

When the operation is understood, it will said supporting its rear endl8'bent down- I limited in its. outward movement by a stopextension 26formed on be found that it is advisable, if not really necessary, tohave some slack inthe operating cord, to permitoperation ofthe device asthe door begins to open. This may be provided forby securing the end ofthe to'the frame with as much slack as is necessary given to the cord.with or without the inclusion of a coil spring for compensatingpurposes, or, as illustrated in the drawing, the free end of the .cordto the upper end of a light coil spring 30 having an enlarged lower end31 and passingthrough a guide eye 32. the distance from said eye tothe-lower end of the spring corresponding to the amount of slack required; I

In operation, the partsero assumed to be cord 9 may be attached lUU inthe position. illustrated in the drawing.

ger element 20 as shownin Fig. 2 engages member 25, and continuedoutwardim'ovement of the doorcauses the, trigger element 21 tobewithdrawn from beneath thefollower' 5, whereupon, theweight with theaddedtension of the cellular structure 6 will cause the said cellularbrush to collapse slight further opening movement of the door,

' eye 32 to the position the trigger element 20 moves out of contactwith the member 25 and these parts return to initial position.

Thus .it will be observed that the collapsing of the brush not onlyshoos the flies away, but also causes some of them to be caught betweenthe strips crushed thereby. The proportion of flies brushed away andthose crushed will de' pend upon the rapidity of movement of the brushin collapsing, and this can be regulated in an obvious manner byincreasing or decreasing the number of strips 6, the weight thereof, orby the interpositioning of some additional operating means such assprings and the like, not shown.

After collapsing of the brush, continued movement of the door in beingopened and after the slack has been taken up in the cord, will cause thebrush to be again extended to the position shown in the drawing, andwherein the follower 5 trips past the trigger 21 and the latter fallingbehind said follower, supports the brush in extended position. Then,after being so set, closing of the door produces no effect, except tocause the slack to take place in the operating cord, as bythe spring 30dropping down through the guide shown. It will be understood that as thedoor approaches its closed position. the triggerelement 20 en gages,tilts, and falls behind the member 25 without displacing from engagementwith the follower 5.

Having fully described the invention, what is claimed is 1. Thecombination with a swinging door, of an insect brush, means for movingthe brush in one direction,'and means whereby the brush is moved in theopposite direction at the moment the door approaches a predeterminedposition. I

2. The combination with a door, of an insect brush movable in onedirection of its own weight, and means whereby the brush is moved in theopposite direction through the action of moving the door.

3. The combination with a door, of a foldable insect brush, and meanswhereby the brush is folded and unfolded throughthe opening of the door.

6 and to be I the trigger element 21 4. The combination with a door, ofa foldable insect brush having a tendency to fold, means normallyholding the brush unfolded, means for causing said means to release thebrush to permit its folding upon initial opening'of the door, and meansoperable during continued opening movement of the door for unfolding thebrush and causing the same to be held by said first means.

5. The combination with a door and its frame, of an insect brushthereon, means for holding the brush in one position, means for causingrelease of the brush from the first means on initial opening movement ofthe door, means for causing movement of the brush in one direction whenso released, and means between the door and frame for returning thebrush to its first position through continued opening movement of thedoor.

6. The combination with a door and its frame, of an insect brushthereon, means on the door for holding the brush in one position, meansn the frame for causing release of the brush from the first means oninitial opening movement of the door, means for causing movement of thebrush in one direction when so released, and means between the door andframe for returning the brush to itsfirst position through continuedopening movement of the door.

7. The combination with a door and its frame, of an insect brush on thedoor, means on the door for holding the brush in one position, means onthe frame for causing release ofthe brush from the first means oninitial opening movement of the door, means for causing movement of thebrush in one direction when so released, and a flexible element betweenthe brush and frame for returning the brush to its firstposition'through continued opening movement of the door. I

'8. The combination with a swinging door and its frame, of a brushsupport thereon, a self-folding insect brush on said support, a cordattached to said brush and said frame for unfolding the brush duringopening movement of the door. means on the'door adapted to automaticallyengage with and hold the brush unfolded, and means on the frame fordisengaging said means to permit the brush to fold on initial openingmovement of the door.

9. The combination with a screen door, of a collapsible cellular insectdestroying device thereon adapted to be set and released throughmovement of the door.

In testimony whereof I have hereunto set my handin presence of twosubscribing witnesses.

FRANCIS P. BESSETTE.

Witnesses:

. CHAs. PETERSON, Jenn Emma.

